Blink Compositor Animation: Introduce CompositorAnimationHost correctly.

third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp

Index: third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp
diff --git a/third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp b/third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp
index 72422d3a2cdd025c2d0019b7dc527abb5cd12e0e..9ec00e630cc4d6da18efdd4a5496e9fc995fca00 100644
--- a/third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp
+++ b/third_party/WebKit/Source/platform/animation/CompositorAnimationTimelineTest.cpp
@@ -6,6 +6,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "cc/animation/animation_host.h"
+#include "platform/animation/CompositorAnimationHost.h"
 #include "platform/animation/CompositorAnimationPlayer.h"
 #include "platform/testing/CompositorTest.h"
 #include "platform/testing/WebLayerTreeViewImplForTesting.h"
@@ -29,8 +30,10 @@ TEST_F(CompositorAnimationTimelineTest,
       WTF::wrapUnique(new WebLayerTreeViewImplForTesting);
   DCHECK(layerTreeHost);
 
-  layerTreeHost->attachCompositorAnimationTimeline(
-      timeline->animationTimeline());
+  auto compositorAnimationHost = WTF::makeUnique<CompositorAnimationHost>(
+      layerTreeHost->compositorAnimationHost());
+
+  compositorAnimationHost->addTimeline(timeline.get());
   cc::AnimationHost* animationHost = ccTimeline->animation_host();
   EXPECT_TRUE(animationHost);
   EXPECT_TRUE(animationHost->GetTimelineById(ccTimeline->id()));